I've used Monoprice's connectors for a while now, and so far I've had very few complaints about how they perform. The connectors look great, feel great, and are a dream to solder to. There's certainly no audible comparisons to be made vs Neutrik or other connectors on the market: they do what they're intended to do. My only complaint about Monoprice's male xlr connectors (this problem does not exist with the female or TRS/TS connectors) is that they fit extremely tight when plugging in. I've actually had the fear that I couldn't remove the connector out of a mic panel the other day. So far I've had to "break in" each connector by leaving it connected to a female wall connector just to get the pins to start lining up properly.
Overall the connector does it's job and feels and looks great while doing it. But if you have the type of clients who "hear with their eyes" or have their opinions swayed by the logo they see on your gear, you may want to look to Neutrik or some other brand. It will look especially bad if they see you pulling on the mic cable with all your might and it doesn't come out of the wall.
PROS: Solid construction, good looking finish, and a dream to solder to.
CONS: These connectors fit SNUG, as in difficult to disconnect snug.
I have been pretty please at the design of this connector, especially in conjunction with PID 5978, 5979, and 5980.
I am someone who uses Neutrik twist on connectors and I shun any other "Screw type" connectors who's holes don't always line up. However, this connector is different. It is solid, well designed and makes soldering a breeze. Recommend!
I have used a bunch of these and also the TRS and FXLR counterparts recently to wire up my modest home-recording set-up. I love these. And even though the holes where you slide the wires through are pretty small, any cursing I do is, I feel, mostly due to my own inexperience, haste, and foolishness. I just get really excited when I'm soldering...
PROS: price. performance.
CONS: the little holes where you slide the wire through are quite small.